#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>
#define N 10
int main()
{
	int a[N], i, j,p;
	double count = 0, s = 0, ave;
	for (i = 0; i < 10; i++)
		scanf("%d", &a[i]);
	for (i = 0; i < 10; i++) {
		p = 0;
		for (j = 0; j < 10; j++) 
			if (a[i] == a[j] && i != j)p++;
		if (p==0) {
			count++;
			printf("%d ",a[i]);
			s += a[i];
		}
	}	
	if (count) {
		ave = s / count;
		printf("%.1lf", ave);
	}
	else printf("No");
	return 0;
}